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MCP verified MIT Self-run

Kalshi Mcp

mcp-rangertaha-kalshi-mcp · by rangertaha

Kalshi Trading MCP Server in Golang

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Install

$ agentstack add mcp-rangertaha-kalshi-mcp

✓ scanned · ✓ verified — works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

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About

kalshi-mcp

[](https://github.com/rangertaha/kalshi-mcp/actions/workflows/ci.yml) [](#-under-construction)

🚧   UNDER CONSTRUCTION   🚧

This server is an early scaffold — a work in progress.

It runs over stdio with one read-only toolset wired end-to-end. More toolsets are on the way (see the TODO list below). APIs, configuration, and tool names may still change.

A Model Context Protocol (MCP) server, written in Go, exposing the Kalshi prediction-markets API as tools an LLM client (Claude Desktop/Code, Cursor, and others) can call.

Features

  • Typed tools with schemas: every tool has an auto-generated JSON Schema for

its input and output, inferred from Go structs.

  • Read-only switch: KALSHI_READONLY=true hides every mutating tool.
  • Toolset filtering: enable only the areas you need with KALSHI_TOOLSETS.
  • Public by default: market-data tools need no credentials. Supplying an API

key signs requests with Kalshi's RSA-PSS scheme for authenticated endpoints.

Install

go install github.com/rangertaha/kalshi-mcp/cmd/kalshi@latest

Or build from source:

git clone https://github.com/rangertaha/kalshi-mcp
cd kalshi-mcp
make build        # produces ./bin/kalshi

CLI

kalshi mcp      # run the MCP server over stdio (default when no subcommand)
kalshi test     # verify connectivity

Configuration

| Variable | Required | Description | | -------------------- | :------: | ------------------------------------------------------------- | | KALSHI_API_KEY_ID | no | Access key ID (enables authenticated tools). | | KALSHI_PRIVATE_KEY | no | PEM-encoded RSA private key for request signing. | | KALSHI_BASE_URL | no | API base URL (default https://api.elections.kalshi.com/trade-api/v2). | | KALSHI_TOOLSETS | no | Comma-separated toolset names to enable, or all. | | KALSHI_READONLY | no | true to expose only read-only tools. |

Toolsets

| Toolset | Covers | | --------- | -------------------------------------------------------------- | | markets | list markets (markets_list) and get one (markets_get) — public market data |

TODO toolsets

  • events — list/get events and their nested markets.
  • portfolio — balance and positions (needs auth).
  • orders — list/create/cancel orders (write; needs auth).

License

MIT — see [LICENSE](LICENSE).

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

Reviews

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Versions

  • v0.1.0 Imported from the upstream source.

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